A Patient with a History of Type 1 Diabetes Has $\mathrm{CCU}$

A patient with a history of type 1 diabetes has just been admitted to the critical care unit (CCU) for diabetic ketoacidosis. The $\mathrm{CCU}$ nurse should prioritize what assessment during the patients initial phase of treatment?

A) Monitoring the patient for dysrhythmias
B) Maintaining and monitoring the patients fluid balance
C) Assessing the patients level of consciousness
D) Assessing the patient for signs and symptoms of venous thromboembolism